Process of obtaining lime sucrate.



N0.734,22s. PATENTED JULY21,1903.

' G. DINKEL.

PROCESS OF OBTAINING LIME SUCRA TE. IAPPLIOATION FILED JAN. 19, 1903.

NO MODEL.

INVENTOR TORNEY No. 734,223 'Z Paten ted July 21, 1963.-

UNITED STATES PATENT OFFICE.

eEoEe DINKEL, or JERsEY CITY, NEW ERsEY, ASSIGNOR TO THE AMERICAN SUGAR REFINING COMPANY, A CORPORATION on NEW JERSEY; 1

/ PR oo Es s oF OBTAINING LIME SUCRATE.

SPECIFICATION forming part of Letters Patent no.7e4,223, dated July 21, 1903. Application fileddanuary 19, 1903. Serial No. 139,561. (No specimens-l V V I further quantity of lime. Stated in still Be it known that I, GEORGEDINKEL, a citiother words, my experiments have shown me zen of the United States, residing at Jersey that if a considerable body of lime is intro- City, county of Hudson, State of New Jersey, duced into a considerable body of the soluhave invented a Process of Obtaining Lime tion the lime will immediately combine with Sucrate, of which the following is a specifithewater present in the solution to form calcation. 'cic hydrate, Whereas if small bodies of lime My invention consists in a process of 0bare successively introduced into small flowtaining tricalcic sucrate from a solution of ing bodies of the solution the lime is afforded 1o beet-molasses, water, and lime. a better opportunity to come in contact with Theoretically forty-nine parts, by weight, the slightly-acid base of the sugar constituof lime is required to combine with one hun- 1 cuts of the solutlon. dred parts, by weight, of sugar contained in To carry my invention into effect, I may a solution of beet-molasses and water. This make use of an apparatus such asshown in 15 amount, however, is greatly exceeded in the accompanying drawings. I wish it underpractice, owing to the fact that by reason of stood, however, that any apparatus may be the imperfect method of introducing the lime used through which my invention may be into the solution and the apparatus employed carried into efiect. the major portion of the lime is not brought Referring to the drawings, Figure 1 is a 20 into intimate contact with the sugar constit- ,vertical section through such an apparatus To 60% whom itmtay concern.-

uent of the solution, but is combined with as I may employ. Fig. 2 is atransverse seethe water present to form calcic hydrate. tion of my apparatus, taken approximately on Hence it is necessary to use a large excess of the line X X of Fig. 1. Fig. 3 is a'pl'an view lime. In experiments which I have made I 'of one of the cooling-plates. Fig. 4 is a ver- 2 5 have discovered that the amount of lime may .tical'elevation, in diagrammatic form, showbe materially reduced and the evil effects of ing a slight modification of the apparatus. I heating and foaming obviated if a definite In the drawings, 5 represents a hopper. quantity of the solution in the form of a thin Arranged transversely of this hopper is a flowing stream is subjected to the action of shaft 6, on which are a series of radial agita- 0 successive charges of .lime distributed over tor-arms 7, which serve to stir up the pulverits surface before being introduced into the ized material introduced into the hopper 5. main body of the solution. In other words, On one end of the shaft 6 is a gear 8, in mesh my improved process depends upon the fact with a corresponding gear 9 on the end of the that if small quantities of lime are successhaft 10, arranged transversely of. the lower 5 sively introduced and'distributed through a portion of the hopper. On the opposite end A small body of the solution such lime will comof this shaft is a pulley 11. Through the botbine with the slightly-acid base of the sugar tom of the hopper, which is concave, isformed constituent to form tricalcic sucrate and that a series of parallel slots or openings 12, and the amount of calcic hydrate formed will be arranged to move through these'slots are the 0 very much less than that which would be .pins 13 on shaft 10. These pins serve to produced were similar bodies of lime introdraw or push the pulverized material through duced into the main body of the solution or the slots 12. I 7 into a large quantity of water. I may fur- Located onashaft 14, arranged transversely ther add that my improved process involves of the apparatus and immediately below the 5 what may be termed a time element-that slots 12,is a drum 15, having its surface formed is, it contemplates the introduction of small of a series of parallel wires 16. This drum bodies of lime into-a thin flowing stream and when rotated serves to break up the streams permitting a period of time to elapse whereof lime flowing through the slots 12 of the in the lime may combine with the slightlyhopper 5. The rotation of this drum may be 50 acid base of the sugar before introducing a efiected through the pulley 17 Situated unroe stood that the solution flows upon the plate the lime on the plate 21 and the precipitation of the lime on plate 21, and so on.

To carry my invention into practice, I propose to cause a stream of the molasses solution of definite width and thickness to be discharged upon aplate and a definite quantity of lime, measured through the instrumentalities described, to be continuously discharged on such stream as it passes under the drum 15. The thickness of the stream, its rapidity of flow, and the amount of lime added in a finely-divided state can readily be determined by experiment.

Having thus described my invention, I claim- 1. The herein-described process of forming calcic sucrate, which consists in causing a sugarbearing solution to move as a thin stream over a series of plate-like surfaces and in adding to such stream at successive points in its line of travel lime in a finely-divided condition.

2. The herein-descri bed process of forming calcic sucrate, which consists in introducing into a thin flowing stream of sugar-bearing solution successive charges of powdered lime.

3. The herein-described process of forming calcic sucrate, which consists in introducing into a thin flowing stream of sugar-bearing solution and at definite points in its line of travel successive charges of lime.

4. The herein-described process of forming calcic sucrate, which consists in causing a sugar-bearing solution to move as a thin stream over a series of plate-like surfaces, adding to such stream at successive points in its line of travel lime in a finely-divided condition, and cooling such stream in its passage over said surfaces.

5. The herein-described process of forming calcic sucrate, which consists in causing a sugar bearing solution to move as a thin stream and at a definite rate ofspeed over a series of plate-like surfaces, and in adding to such stream at successive points in its line of travel measured quantities of lime in a finelydivided condition.

6. The herein-described process of forming calcic sucrate, which consists in causing a sugarbearing solution to move as a thin stream at a definite rate of speed over a series of plate-like surfaces, and in distributing over the surface of said stream at successive points in its line of travel a definite quantity of lime in a finely-divided condition per unit of travel of said solution.

7. The herein-described process of forming calcic sucrate, which consists in causing a sugar-bearing solution to move as a thin extended stream over a series of plate-like surfaces, and in stream at successive points in its line of travel lime in a finely-divided condition.

8. The herein-described process of forming der and to the right of the drum 15 is a trough 18, connected, through pipe 19,with the source of molasses solution.

20 indicates a pipe through which the solution may be drawn off from the trough to drain it.

Arranged to the left of the trough 18 and inclined in a downward direction from the top of the trough is a plate 21, having a continuous upper surface 22, made, preferably, of a good heat-conducting material and having its body portion divided into a series of channels 23. (Best shown in Fig. 3.) Connected to these channels are pipes 24, which may be connected to any source of coolingfiuid. The object of constructing these plates with the channels through their body, as described, is I to permit the circulation of a cooling fluid to extract any heat which maybe generated over I the surface of the plate.

Arranged under the lower edge of the plate 21 is a second smaller trough 25, perforated near the top at each side, as indicated at 26, and arranged under this trough are a series of parallel horizontallydisposed pipes 27. The objectof this trough and pipes is to provide means for receiving the solution from the plate 21 and cooling it as it moves over the extended cooling-surface formed by the pipes 27. The pipes 27 may or may not be connected to a source of cooling fluid.

In Fig. 4 I have shown the same arrangementof parts, with the exception that the cooling apparatus is omitted.

In the drawings I have shown the plates 21 arranged with reversed inclinations. The object of this arrangement is to cause the solution to be, in effect, turned over and present different surfaces to the lime after each treatment by the lime.

The operation of my. device is as follows: The lime is introduced into the hopper 5 and is gradually fed under the action of the pins 13 onto the revolving wire drum 15. Here the streams are broken up and deposited as a' fine powder upon the solution flowing from the trough 18 onto the plate 21. It will be underin a thin stream. As the solution moves off the plate 21 it passes into the trough 25, thence over the cooling-pipes 27 onto the second plate 21 which exposes the opposite surface of the flowing solution. At the lower i end of this plate it is again subjected to the action of a descending body of lime and from thence passes onto the plate 21", thence to the plate 21, where it is again subjected to the action of a body of descending lime, and so on.

In the drawings I have shown apparatus for subjecting the solution to three charges or three treatments with lime. I wish it understood that I do'not limit myself to the number of treatments which the solution may receive.

It will be observed, as stated in the preamble of the specification, that a time interval olapses between the time of precipitation of i calcic sucrate, which consists in causing a sugar-bearing solution to move as a thin a series of plate-like surfaces,

stream over continuously adding to such.

. and lime to move a and to have its exposed surface reversed in passing from one plate to the next, and in adding to such stream first to one surface and then to the other at successive points in its line of travel lime in a finely-divided condition.

9. The herein-described process of forming calcic sucrate, which consists in adding to the sugar bearing solution flowing as a thin stream and at successive points in its line of travel, and to alternately opposite surfaces of said stream, lime in a finely-divided condition.

10. The herein-described process of forming calcic sucrate, whichconsists in causing a sugar solution to move as a thin stream, depositing upon such stream a finely-divided body of lime, permitting said sugar solution definite distance, then adding a second body of lime, permitting said sugar solution and two charges of lime to move a definite distance, then adding a third charge of lime, repeating such additions of lime until combination has been effected between the sugar constituent of the solution and the added lime.

11. The herein-described process of forming calcic sucrate, which consists in causing a sugar solution to move as a thin stream, and in adding to such stream at successive points in its line of travel, charges of lime in a finely-divided condition, each charge in weight less than the quantity required to combine with the sugar constituent of the mass of sugar solutiontreated.

12. The herein-described process of forming calcic sucrate, which consists in causing a sugar solution to move as a thin stream, adding to such stream at successive points in its line of travel lime in a finely-divided condition, and cooling said solution between each addition of lime.

18. The herein-described process of forming calcic sucrate, which consists in causing a sugar solution to move as a thin stream, adding to said solution a definite quantity of lime in a finely-divided condition, allowing said bodies of sugar and lime to move in contact for a definite time, then adding asecond body of lime, repeating the lime charges and periods of contact until the sugar of the treated solution has been precipitated by the chemical action of the lime.

14:. The herein-described process of forming calcic sucrate, which consists in adding to asmall and definite quantity of sugar solution a small and definite mass of lime in a finely-powdered condition, allowing such bodies to remain in contact for a definite length of time, then repeating said lime charges at intervals until the sugar contained in the treated solution has been precipitated by the chemical action of the lime.

15. The herein-described process of forming calcic sucrate, which consists in causing a sugar-bearing solution to move slowly over a plate-like surface, and in adding to a definite quantity of such solution, a definite quantity of lime within a definite time.

16. The herein-described process of forming calcic sucrate, which consists in causing a sugar-bearing solution to move as a thin stream over a plate-like surface, and adding to the surface of a definite quantity of such solution, a definite quantity of lime within a definite time.

17. The herein-described process of forming calcic sucrate, which consists in causing a sugar-bearing solution to move as a thin stream over a plate-like surface, and in adding to such stream, at the beginning of its line of travel, lime in a finely-divided condition.

18. The herein-described process of forming calcic sucrate, which consists in adding to a small and definite quantity of sugar solution, a small and definite mass of lime in a finely-divided condition, allowing said bodies vto remain in contact for a definite length of time, then agitating said solution, then repeating said lime charges and agitation at intervals until the sugar contained in the treated solution has been precipitated by the chemical action of the lime.

In testimony whereof I affix my signature in the presence of two Witnesses.

GEORGE DINKEL.

Witnesses:

J. E. PEARSON, FRANK OCoNNoR. 

